InfoPath Dev

 I am trying to use a formula in Infopath 2013 to accomplish the following (btw I'm a IP noob - and not even conceived in SPD2013 )

- Set the autonumber field equal to 1 when count(@ID) = 0
- Set the autonumber field equal to max(@ID) + 1 when count(@ID) > 0

To me it would seem like a simple if/than statement but that's not one of the options in the "Insert Function" dialog box.

Thanks.

 So you know what I'm trying to accomplish, I need to have a form saved with a unique number. The now or today funtion won't work as it creates names that are too long.I would like the names to be "SIR - 001, SIR - 002, etc)

Hi sdnmjn. As far as the formulas, you should be able to select the field set a rule for that field by clicking on Condition and then set the value of the field by adding an Action. Regarding the file name(s), why don't you concatenate the SIR with the ID #? WHEELS